User`s manual

DemoKit-LG2 User’s Manual
2. System Configuration
Configuration of the DemoKit-LG2 system is shown in Figure 1.
Figure 1. System Configuration
2.1 DemoKit-LG2
DemoKit-LG2 is a demonstration kit for the NEC Electronics 8-bit 78K0/LG2 MCUs with integrated
LCD controllers. The board connects to a host computer by means of a USB interface cable. The system
may be used for on-board flash programming of the MCU’s internal flash memory and for execution of
application programs. The board also supports on-chip debugging using the ID78K0-TK debugger.
DemoKit-LG2 runs the MCU at 6.0000 MHz and provides a 32.768 kHz subclock.
2.2 Host Computer
The USB host interface enables communication to the DemoKit-LG2 board. The FT-232 USB UART
chip allows application software to access the USB device in the same way it would access a standard
RS-232 interface. The FTDI's virtual COM port (VCP) driver appears to the Windows-based system as
an extra communication port, in addition to any existing hardware communication ports.
2.3 Power Supply via USB Interface
The DemoKit-LG2 supports a flexible configuration of its power supply. The board can be powered by
the USB interface, the QB-78K0MINI on-chip debugging emulator, or by an external CR2032 3-volt
lithium coin battery.
3. Components
The DemoKit-LG2 board is equipped with a navigation switch, 112-segment LCD panel, temperature/
light sensor, and several connectors for connection to the host computer, flash programmer, and external
target hardware.
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